Shock absorber



June 21, 1932. .1. w. LiSTERMAN 1,863,665

SHOCK ABSORBER FilEd Feb. 12, 1951 gwwntoz pended claims.

, with my invention,

Patented June 21, 1932 1 JOHN wntrsrnnmnnor PUEBLO, coLonAno' snoox ABSORBER npp licationfiled February 12, 193 1, SeriaLNo. 515,323. 7

My invention relates to shock-absorbers, more particularlyto shock absorbers "for use on automobiles ofconventional construction, and it consists in the combinations, arrange- 6 ments andconstructions herein shown and described. V V

I It is well known to automobile drivers of today that the shock-absorbers in current use do not withstand heavy shocks impinglng thereupon, but often give way with consequent' damage to the'vehicles. It istherefore a primary purpose of my invention .to provide-a shock absorber which is so constructed that the same will withstand shocks of greatmagnitude without material damage resulting thereto orto the'vehicle.

It is a further object of my. inventionto provide'a shock-absorber that may. be readily and easily assembled and disassembled for renewal or repair of parts when necessary, or for other reasons, if desired. V A still further and'very important object of my inventionis to provide a shock-ab sorber having a mounting 'meanszwhich' will adapt" said shock-absorber to be positioned upon present-day automobiles withoutmodification thereof. 6 e

A- still further object of my invention is to provide a device of the type described which H has few parts, does not get out of order readlly, and is simple to manufacture.

Other objects and advantages will appear as thespecificatio'n proceeds, and the device will bemore particularly defined in the ap- My invention is illustrated in the accompanying drawing forming a part of this ap- 'plication,in which A Figure 1 is a fragmentary plan view of the front portion of an automobile equipped with. my invention. 7

Figure 2 is a fragmentary plan view of the rearportionof an automobile equipped Figure 3 is a sectional view on line 3-3 of Figure ,1, with parts thereof being shown inelevation for clearness of illustration.

Figure 4 is a fragmentary horizontal sec tional view of my invention and one of the specific mounting means therefor,

Figure 5is a sectional view on line5 5 of Figure 4, showing the entire mounting means, i f

Figure 6 shows my invention with a modified form of mounting means for securing the 55 same to an axle of an automobile, and

Figure 7 is atop plan fragmentary view of my invention equippedjwith aimodified form of mounting means for'securinggthe same tothe' gastank of anautomobile,with 6 parts offmy device shown in section for clearness of illustration. l

In carrying out my invention, I make use of an automobile, 1, of conventional construction, having a portion of the frame or chassis, 2

2-, extending transversely of the front or rear thereof. Itis to this portion, 2," of the frame or chassis, 1, that I secure my shock-absorbing means, generally indicated at This front shock-absorbing means consists to of a bumping member, 4, and a pair of shockabsorbing mounting means, 5 and 6, secured to said bumping portion, 4, by the bolt and washer arrangement, generally indicated at 7, and'comprising the bolt,18, which screws 7 into the plunger, 9, ofthe shock-absorbing device, 5 or 6, and the lock washer, 10, positioned between the bolt head the bumper member, 4.

" Each offthese shock-absorbing members, il

5 or 6, comprises the plunger portion, 9, and the barrel portion, 11. These barrel portions, 11., consist of a pair of interfitting cupshaped members,.12 and 13,adapted to be m fastened securely together bym'eans ofthe' threads shownat. 14. The cup-shaped member, 13, is provided with an aperture,-indicated at 15, for the reception of the plunger,

9, while the cupshaped member, 12, is also provided-with an aperture for receptionof the nut and bolt fastening means, generally indicated at 16, which secures the shockabsorbing member to the portion of the frame 2'. This nut and bolt.means,,-16, comprises the bolt, 17, and the nut, 18,'mounted thereon. '95 A look washer (not shown) maybe positioned between the nut, 18 and the end wall of'the cup portion, 12, for securing the parts in position if desired. v 7Q For absorbing the shocks impinging upon the bumper, 4,'the barrel,'11, houses therein the resilient means, comprising the coil compression spring, 19. This spring, 19, may be secured at one end between the nut, 18, and the end wall of the cup portion, 12, if desired, or it may merely abut the end wall, 12. The opposite s end thereof engages the V flanged head, 2( of the plunger, 9, for resiliently supporting theplunger 1n extended position and for absorbing shocks when said plunger is depressed into the barrel: .7

If desired, a third shockbsorbing means similar to the means 5 or 6 may be positioned between the frame portion, 2, and the bumper, 4, intermediately 'between 't-h'e absorbers, .5 ori6. If desired, of course, anyplurality of such shocksabsorbing means could be p.0- sitioned between said frame and vsaid bumpe 'f' When it is desired to mount. the shock-absorber on automobiles not equipped with a transversely extending frame portion or other equivalent. structure;v the [mounting rnieans shown in Figures 4 and 5 is utilized. 1

Thismounting means comprises an upper platemember, 21, and a lower plate member, 22, between which extend two pairs of vertiealposts, 23, having shoulders,"in'dicated at 2A, for securingsfaid :plates in spaced relationship. Any desired fasteningmeans, such .as the bolts, 25, may be utilized for securing these parts in position. As shown most clearly in Figure 5,, this mounting means is secured to the base or floor, 26, of the automobile or other vehicle by, means of the bolt members, 27, or other suitable fasteners, extending through said base... i It is easily understood that the mounting means may be positioned either, on the front or rear of the automobile or other vehicle; The shock-absorbing means, 5 or 6, in this modification is secured to itsrespective pair of posts,23, by means of the clamp, indicated at28, Which as shown, may consist of a bent strap of metal engagefible about said post members and wi th 'the bolt, .17, of the shock-absorbing 'means 6. This strap, 28, is held in tightfittingrelationship with said posts by means Of a bolt and nut means, generally indicated at 29, consisting of the bolt, 30, and the nut, 31. A suitable lock washer maybe. provided for this arrangement, if desired. e

In that form of the invention shown in Figure 6, the shocleabsorberis provided with 3 mountingmeans which is especially adapted 1 to secure the same to the front axles ofautomobiles of present construction which do not have a transversely extending portion of the frame-for securing the same thereto, such as the late model Ford automobiles. In this 7 form, theshock-absorber is. equipped with. a

strap, 32, engageable with and secured in position by the bolt, 17, which is a part ofthe shock-absorber This strap,v as appears in said figure, engagesabout the axle, 33, for

rigidly securing the shock-absorbing means "in position thereon. Of course, the number 7 of straps used is equal to the number of shocktoiiio ile, and is secured thereto by any suit- 1 able fasteners such-as illustrated at 36. The

operation of my device is easily understood.

Whenzthe absorber is. mounted as heretofore set forth, the; 5 shocks impinging upon 7 the bumper portion, 4, will ,.depress.fthe plunger,

.9, within the barrel,=11, against the resiliency lofthe spring-19, whose powerma'y beso calculated as to withstand any normal-shock. Stresses. and. strains acting to move the .pis-

tons, :9, laterally-will'betaken care ofiby the.

engagementiofthe head thereof within the barrel member and absorbed by the rigid portions as well asthe spring. of the appara- When the operator desires to disassemble or assemble the device, he hasonly to unscrewor screw together the interfitting cup members, '12Fand' "13, whereupon the parts aresdisassembled -or assembled as" desired.

It is thus seen that I have provided a shockabsorber which, because-of its'simple piston and barrel construction, may be formed to withstand shocks of any normal magnitude, and which is further particularly well adapted to be mounted uponautomobiles and other vehicles of specific construction in use today.

What I desire toclaim and secure by Letters Patent is: v a 7 V V 1. Ashock-absorbing means for use on automobiles and the like,*comp'rising a bumper,

resilient means for mounting said bumper, and means for securing said resilient means to the floor of the automobile or other vehicle, consisting of; horizontally extending walls, one of said wallsbeing connected to the base of the automobile, vertically extending posts between said horiz0ntally extending walls, and straps engageable about said vertically extending post a d i sa'idgrep ilient means. I r 1 V 2JA shock-absorbing means for use onautomobiles and the like, comprising a bumper,

posts secured to the automobile, and strap means connected to said bumper'and fastened 7 about said posts for mounting said bumper in position 7. v j

3. A shock-absorbing means for use on automobiles andthe like, comprising a bumper, vertical posts, secured to the automobile, and means connected to said bumper and said posts for mounting said bumper in position.

4. A shock-absorbing means for use on automobiles and the like comprising a bumper, posts secured to the automobile, and straps connected to said bumper and saidposts for mounting said bumper in position, each of said straps being passed about a plurality of said posts. 7 JOHN W. LISTERMAN. 

